1.
Bonar Siagian, M Bambang Purwanto. Lextutor English Learning Pronunciation and Vocabulary: A Language Data Base Program . PUSTAKA [Internet]. 2023 Dec. 4 [cited 2024 Jul. 22];4(1):116-30. Available from: https://jurnal-stiepari.ac.id/index.php/pustaka/article/view/1062